Would these work well as a performance upgrade?Do they fit?:az:

could port your own, or get custom made headers... i think rob L. was talking a while back about how the exhaust is what really limits the 850's... I would assume the stock header wouldnt flow much better then your's

I actually meant to say inlet manifolds-not exhaust!

Going strictly from memory here, but I THINK someone else asked this a while back, and I THINK the reply was that they are the same manifold.

A couple of options were, going with the Dinan unit ($$) or having your intake manifold professionally "opened up" by a competent machine shop (which should be much less than Dinan).